Tracking apparatus

Abstract

A tracking apparatus includes: a fixing frame secured on a platform, and supporting a main body; a turning frame supported by the fixing frame, and rotating in one direction on the supported position as a rotation axis; an elevating frame connected with one end of the turning frame, and rotating in a direction different from the direction where the turning frame rotates; a sensor mounted on the elevating frame, and the pointing direction of which is determined based on the rotation angles of the turning frame and the elevating frame; a turning balance weight provided on the end of the turning frame, which is opposite the elevating frame, to keep the balance of the rotation axis of the turning frame; an elevating balance weight provided on the elevating frame to keep the balance of the rotation of the elevating frame; and a damper provided between the turning frame and the turning balance weight.

1 . A tracking apparatus comprising: 
 a fixing frame, secured on a movable body, for supporting a main body;    a first turning frame supported by the fixing frame, and rotatable in one direction on the supported position as a rotation axis;    a second turning frame connected on one end of the first turning frame, and rotatable in a direction that is different from the direction of the first turning frame;    a sensor that is mounted on the second turning frame, and the pointing direction of which is determined with respect to a target based on rotation angles of the first and second turning frames;    a first turning balance weight provided on the opposite end of the first turning frame from the second turning frame to keep the balance of a rotation axis of the first turning frame;    a second turning balance weight provided on the second turning frame to keep the balance of a rotation axis of the second turning frame; and    an elastic body that is provided between the first turning frame and the first turning balance weight, and the elasticity of which is adjusted such that a natural frequency on the side of the first turning frame including the sensor with the rotation axis of the first turning frame as a boundary conforms with the one on the side of the first turning frame including the first turning balance weight with the rotation axis thereof as a boundary.    
   
   
       2 . A tracking apparatus according to  claim 1 , the elastic body includes any one of a coil spring, a rubber damper, a Belleville spring, and a leaf spring.